Tina Fey, Move Over: The REAL Sarah Palin Comes to SNL

The Republican vice presidential candidate – and Tina Fey’s alter ego – will appear on Saturday Night Live this weekend with guest host Josh Brolin, the McCain-Palin campaign has confirmed.

It s still hush-hush exactly what Palin will do on the comedy show: Will she partner with Brolin s wickedly spot-on impersonation of President Bush, as showcased in the actor’s new film, W.?

Or, will she stick to sticking it to Fey, whose wickedly spot-on impersonation of Palin has helped shoot the show’s ratings skyward.

In an interview with PEOPLE for next week s issue, it was hard to tell whether the Palins are still laughing along with Fey. When a reporter noted that Fey plays the vice presidential candidate as bubble-headed, Sarah retorted: That s funny, I kind of play her bubble-headed, too, when I imitate her.

Chimes in husband Todd Palin about his wife: She s been impersonating Tina Fey longer than Tina Fey s been doing Sarah Palin.”